Steam-shovel.



No, 892,829. PATENTED JULY 7, 1908. w. M. (moss.

, STEAM SHOVBL'. APPLICATION FILED 00128.1907.

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No. 892,829. PATENTED JULY 7, 1908.

W M GROSS STEAM SHOVBL.

APPLICATION FILED 00w. 8. 1907.

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No. 892,829- PATENTED JULY 7, 1908.

W. M. GROSS.

STEAM SHOVEL.

APPLICATION FILED 0018,1907.

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W. M. GROSS.

STEAM SHOVEL.

APPLICATION FILED 001'. 8. 1907.

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No. 892,829. PATENTED JULY.7, 1908. W M GROSS STEAM SHOVBL.

APPLICATION FILED 001*. e. 1901.

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wane/wag PATENTED JULY .7, 1908 W. M. GRUSS. STEAM SHOVEL.

- APP'LIOATION FILED 0OT.8.1907.

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w. ,M. GROSS. STEAM SHOVEL.

APPLICATION FILED OQT. 8,1907;

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SKIE AM-SHOVEL.

Specification of Letters Patent. Application filed October 8, 1907. Serial No. 396,451.

Patented July 7. 1908.

To all whom it may concern:

Be it known that 1, WILLIAM M. Gnoss, a citizen ofthe United States, residing at Salmon, in the county of Lemhi and State-of Idaho, have invented certain new and useful Im rovements in Steam-Shovels; and I dodec are the following to be a full, clear, and exact description of the invention, such as will ,enable others skilled in the art to which it appertains to make and use the same, reference being had to the acompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification. 1

My invention relates to improvements in steam shovels.

In my improved construction an endless bucket conveyer is mounted on a conveyer frame and this frame is in turn slidably mounted upon a relatively stationary frame, whereby the bucket conve or frame is ada ted to move longitudinal y on the relative y stationary or auxiliary frame, to allow a bucket or shovel to pass an obstruction as a lar e rock or boulder, without injuring the buc et or other parts er the apparatus Upon the conveyor frame is mounted an engine for propelling the endless bucket conveyer. .The relatively stationary frame is mounted upon a rotary platform, the latter being in turn mounted upon a non-rotary -platform which 1s, however, mounted to travel longitudinally upon a suitable track. Mounted on the non-rotary platform is an engine and a belt conveyer, the latter being so arranged as to receive the material discharged from the buckets of, the bucket conveyer. This belt conveyer is pivotally mounted at its receiving extremity and is extremities maybe raised or lowered as may be desired depending on whether it is niecessary to elevate the material after it leaves the bucket conveyer or carry itdownwardly.

My improved mechanism is equipped with all necessary devices to provide a thoroughly practicable construction of the class-indicated.

Having briefly outlined'my im struetion, I will proceed to descri roved con e the same in detail reference beingmade to the accompanyirig' drawing infwhich is illustrated an tionofrriy'improved apparatus. ft'o'p plan view ofthe samo. Fig. 31s a top embodimentthereof.

In this draffg Figure l e a side am- Fig. 2 is aplan view of the non-rotary platform with the superstructure removed. q Fig. his ,a similar view showing the rotary platform in detail. Fig. 5 is a side elevation'of the rotary platform equi ed with a, relatively stationary fram'e ver e In this view the bucket conveyer, as well as the non-rotary platform is omitted. Fig. 6 is a side elevation of the bucket conveyer and the movable frame upon which it is mounted. In this view the stationary frame is omitted, and the parts are shown on a larger scale. Fig. 7 is a top plan view of the same. Fig. 8 is a section taken on the line 8 8 Fig. 1 viewed in the direction of the arrow and with the parts shown on a larger scale. Fig. 9 is a side elevation of the same withthe belt conveyer mechanism," however, broken between its extremities for lack of room on the sheet. Fig. 10 is a perspective view in de' tail of one of the buckets or shovels. Fig. 11 is a fragmentary view of the bucket conveyer looking at the bucket in the direction of arrow 11 Fig. 10. In this view the parts are shown on a larger scale. fragmentary view of the non-rotary platform looking in the direction of arrow 12 Fig. 1, the upright bars being partly broken away and the parts shown on an enlarged Fig. 12 is a scale. Fig. 13 is a fragmentary edge view of the rotary and non-rotary platforms illustrating the travel of the operating cable which actuates the rotary platform element. Fig. 14 is an enlarged detail view of the cable mechanism for supporting the endless bucket conveyer frame upon the..rela-" .v

tively stationary "rame. larged view of the-laterally disposed vertically adjustable track wheels mounted on connected 'Wli/h means, whereby its opposite the nonrotaryplatform shown on a larger scale This is a view looking in the. direc tion of arrow 15 Fig. 3. Fig.- 16 is a section taken on the line 16-16, Fig. 12.

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate a track upon which is mounted a non-rotary platform 6 provided with a circular track 7. Thisstation'ary platform is provided with centrally located arallel frame bars 8 in which are journaled axles 9 provided with wheels 10 which engage the track 5 whereby the en- Fig. 15 is an en-- tire apparatus may be moved'forward and back or longitudinally on the track. Mounted on this stationary platform is an engine 12 indicated by dotted lines in 3. In

this. last named figure the dotted circle is only intended to indicate the location of the engine. This engine actuates an operating shaft 13 provided with pulleys l4 and 15 from which lead belts 16 and 17 respectively, to pulleys 18 and 19 res ecti'vely, mounted on a shaft 20 provide ,with a worm 21 engaging a worm wheel 22 fast-on a shaft 23', carrying at itsouter extremity a grooved pulley 24. The pulleys 18 and 19 are normally loose on the worm shaft. Between these pulleys is located clutch mechanism 25 adapted to be shifted by a lever arm 26 fulcrumed at 27 and connected at its op osite extremity with an operating rod 28.

'en this clutch mechanism is shifted toward the pulley 18 as far as it will go, the last named pulley is locked on the worm shaft 20 and the latter will then be turned in one direction assuming that the operating shaft 13 is rotating. This movement will im art rotary movement to the worm wheel s aft 23 by virtue of the worm gear 21, 22, whereby thegrooved pulley 24 is given a corresponding movement' Now if it is desired to reverse the movement of the grooved pulley 24, the clutch mechanism is shifted to its limit of movement in the opposite direction or toward the pulley 19 whereby the latter is locked on the worm shaft leaving the pulley 18 loose thereon. This will result in reversing the direction of the worm shafts rotation since the belt ,17 is a crossed belt. It is also evident that rotary movement will be imparted in the reverse direction to the shaft. 23 and the grooved pulley 24. The .fgnction of the mechanism just described is to move the rotary platform hereinafter described in the one direction or the other as may be desired. I I

Mounted on the non-rotary platform 6, is the rotary platform 29 provided withc track wheels 30, engaging the circular track 7 'of the non-rotary platform. The right hand portion of this platform has the shape of a segment of a circle somewhat larger than a half circle. The central portion of the platform is open as shown at 31 and into it protrudes a circular bearing 33 enga ed by blocks 34 mounted on the rotary p atform and having their inner surfaces 35 curved to conform to the curve of the outer wall of the bearing 33. As shown in the drawing the segmental part of the rotary platform (see Fig. 4) is provided with transverse beams 36, while on opposite sides of the opening 31, the platform is closed as shown zit--37. Mounted on the forward or left hand extremity of the rotary platform (see Fig. 4), 'and occupying positions/,directly above the cross beam 36, are two tinclined u wardly projecting stationary /bars 38. These bars are braced bytwo bars 39 whose lower extremities are eonnectcdwith each bucket and also forming hin e pins for 'fihe chains where the buckets are ocated.

the forwardly projecting centrally located of the bars 38 as shown at 41.

, To the upper extremities of the bars 38 is secured an inclined relatively stationary frame work 42. 'This frame-work is connected with the bars 38 as shown at 43; The lower and forward portion of the in. clined frame Work 42 is connected with the forward extremities of the platform beams 40 as shown at 44. The construction just/ described is best illustrated in Fig. 5 of the drawing. This frame work 42 is composedof two separated parallel members 45 and between these members, is located a conveyer frame 46 composed of ,-two parallel members 47. Mounted in the lower extremities of the frame bars 47 is a stationary shaft-48 u on which are loosely mounted two sproc et wheels 49. Also loosely mounted upon the shaft 48'are two track. wheels 50 ada ted to pass between the two members 51 of each arallel side member 45 of the frame 42. etween these members 51 is a narrow s ace 52 of sufficient size to receive the trac wheels 50, whereby theconveyer frame is permitted to slide or roll longitudinally upon the relatively stationary.

frame. Also fast to the upper extremities of the conveyer frame bars 47 is a shaft 53 provided with vtrack wheels 54 similar to track wheels 50, the same being loose on the shaft 53 and engaging the space 52 between '55, 55, are mountedth'e endless chains 56 carrying the bucketsor shovels 57 which'areconnected with the chains at suitable intervals by means of rods 58 connected with a The two-sprocket wheels 55 are made fast shaft 53 and mes ing with pinions 60 fast on a shaft fil journaled in the frame 46. Fast on the centraliportionejof the shaft 61 is agear62 meshin "with a smaller gear 63 faston the engine s aft 64 provided with crank wheels 65 with which the piston stems 66 of the cylinders are connected. These cylinders are mounted on the members 47 of the conveyer frame 46 and receive their .to two gears 59 'ournaled on the stationary steam or operating fluid from steam chests Y 68 whose slide valves are regulated from. eccentrics 69 mounted on the engine shaft, the eccentrics being connected with the valves of the steam chests by rods 70. The steam chests receive their supply of operatingfluid through a conduit .71. When I the operating fluid is turned on, it is evident that the bucket conveyer will be s'uit'ale manner. If it were not for this tween the engine shaft and the s rocket '.wheels as heretofore explaine The endless conveyer travels in the direction indicated by the arrows in Fig. 6. As the buckets or shovels 57 are moving downwardly upon the lower run of the conveyer, their open mouths are also downwardly directed and at the lower extremities of these mouths is a sharp edge orlip 72 adapted to zshovel is-filled as it passes to the upper run of the conveyer.

The conveyer frame 46 is supported at a predetermined elevation upon t e relatively stationary frame 42, by means of cables 74 connected at one extremity with the shaft 48 and at their opposite extremities with a bar .t said shaft may be rotated for the pur- Ypoe'e'of causing the nut 76 to travel forward so 7 5. The central portion of the bar 75 is connected with a nut 76 threaded on a screw "shaft 77 journaled in boxes 79 mounted on transverse members 78 fast on the beams 40 of the rotary platform, forward of the segmental member thereof. The connection between'the bar 75 and the nut 76- is indicated at 80. The extremity 81 of the screw (5 aft-.77 is shaped to receive a crank whereby or backwardthereon whereby the bucket conveyer frame may be raised or lowered. If? the bar 75 whichis' slidably mounted on the beamsAO, is caused to travel rear'wardly or tofwar'dlthe right in Fig. 4', the conveg er frame maybe moved upwardly a limited 1stance on the relatively stationary frame 42;

' while if the shaft 77 is turned in the op osite direction, the conveyer frame will be al owed to slide downwardly u on the frame 42.

. If in the o eration o themachi'ne a bucket 57ystrikes a oulder or large rock 82, the con veyer with its frame will move upwardly, to allow the bucket to pass over the said bouldef after which the conveyer will automatically return to its normal position on the op o- .gsite side of the boulder. By virtue of t is construction the material WlllbE dug away on both sides of the boulder until the latter' is loosened and if it is too large to be taken upb a bucket, it may be removed in any feature whereby the conve er is allowed to automatically adjust itsel upon the relatively stationary frame 42, the conveyer might be broken by one of its buckets coming-in contact with a large rock or boulder such as is indicated at 82 in the'drawing. Mounted to receive the contents of the buckward extremity of an endlessconveyer belt.

84 mounted on end drums 85 journaled in channel beams 86 which constitute the frame work of the belt conveyer. The drums 84 are largest at their outer extremities and taper or diminish in size toward the center, whereby the upper run of the belt is caused to assume such a position that it is lowest at its longitudinal center and highest at its outer edges whereby it is adapted to hold a considerable quantity of material without the use of flanges at its outer edges.

The belt conveyer is operated from the engine 12 which rotates a vertically disposed shaft 87 its upper portion being journaled in a bearing 88 connected with the upright bars 38 by rearwardly extending bars 89. To the upper extremity of the shaft 87 is made fast a eveled gear 90 meshing with a similar gear 91 fast on a transverse shaft 92 one extremity of which is provided with a gear 93 meshing with a gear 94 fast on a shaft 95 to one extremity of which is made fast a sprocket wheel 96 connected by means of a c ain 97 with a sprocket 98 fast on the journal 99 of the rearwardly located drum 84. As the belt conveyer is intended to travel in .the direction indicated by the arrow in Figs. 1, 2 and 9, the construction described for operating the same results in a ulling movement acting from the extremity arthest away from the power, the pull being on the up er run of the belt conveyer which is believed preferable.

The forward extremities of the frame bars 86, are piv'otally mounted upon the shaft 95. The opposite extremity of the conveyer frame is supported by upwardly projecting bars 100 whose lower extermities are 'movably connected with brackets A adjustably mounted on the outer member A of the nonrotary platform. Journaled on the upper extremities of these bars 100, is a winding shaft B provided at one extremity with a hand wheel C. The forward extremities of two cables D are connected with this shaft while their rear extremities are attached to the. rearward extremities of the beams 86. The bars 100 are further supported by guy ropes or cables E connected at their forward extremities with a U-shaped member G sup- I ported by the bearing 88. By turning the winding shaft B in the proper direction, the rear extremity 'of the belt conveyer frame may be raised or lowered as may be desired whereby the material received from. the bucket conveyer may be'elevated or not .as desired. Attention is called to the fact that the shaft 95 is journaled in the U-shaped transversely arranged member G resting on a block F and supported by the bearing 88 and the frame bars 89.

The rotary platform is actuated by means of a cable H connected at its opposite. extremities with the said platform on two 0 posite sides as shown at I (see Fig. 2). s shown in the drawing each-extremity 'of the cable (see Fig. 14) is equipped with a screw J threaded in a nut K fast on the rotary plat- Figs. 5 and 1 1).

form. Each screw is fashioned at one extremity as shown at L to receive a crank or. wrench for purposes of adjust ent whereby the tension of the cable is p operly regulated. This cable at the rear extremity of the non-rotary platform, passes downwardly over guide pulleys M andunder and around tated in the opposite direction as will be track 5, a pulle O normally loose on the enreadily understood. 4

When lt'is desired to move the entire structure forwardly or rearwardly upon the gine shaft 13, is caused to rotate with said shaft by means of a clutch P adapted to be adjusted on the shaft for the purpose. At the same time the clutch 25 heretofore explained is adjusted to occupy a central position whereby both pulleys l8 and 19 will he loose upon the worm shaft 20, allowing the engine shaft 13 to rotate without operating the shaft 20 and its connections. Leading from the pulley ()to a similar pulley Q fast on a shaft R is a belt S. Also fast on the shaft R is a beveled gear '1 which meshes with a similar gear U fast on a shaft V having a worm W which engages a wormwheel X f. on one of the axles 9 upon which the "Heels 10 of the non-rotary platform are made fast.

' From the foregoing description the use and operation of my improved construction will be readily understood. .lt is evident that if the engine shaft 13 be set in motion under "the circumstances just exfplained, that the non-rotary platform together with the entire superstructure may be moved forwardlyor rearwardly upon the track 5 as may be desired.

I in

' low the. shaft 13 to rotate therein or whereby the pulley O is made loose. on the shaft. The clutch mechanism 25 will then be shifted to cause one of the pulleys 18 or 19 to be looked .upon theshaft 20, whereby the latter may be rotated in the one direction or the other as may be desired. The rotation of the shaft 20 willalso operate theshaft 23 by virtue of the worm gear connection heretofore explained.

The rotation of the shaft 23, operates the grooved pulley 24, whereby the cable is caused to move in the one direction or the other as may be desired, thus causing the rotary platform to move in a corresponding direction by virtue of the frictional engagement between the cable and the track N of the said platform. Now after the apparatus has been adjusted by moving it forwardly'or rearwardly bodily upon the track 5 to bring I it into proper relation with the bank of material to be acted upon, the clutch mechanism 25 is adjusted to occupy a central position.- whereby the pulleys 18 and 19 are loose upon the shaft 20, allowing the engine shaft 13 to rotate without operating any of the mechanism connected with the said shaft except the vertically disposed shaft 87 There is a beveled gear Y fast on the shaft 13 which meshes with a similar beveled. gear Z fast on the lower extremity of the shaft 87, whereby motion is communicated fromthe shaft 13 to the shaft 87. From what has been heretofore explained, it will be understood that the operation of the shaft 87, imparts movement,

to the belt conveyer 84 in the direction indicated by the arrows as heretofore explained.

Simultaneously with the operation of the y I belt conveyer, the bucket conveyer 1s operated, by deliverin operating fluid to the cylinders B7 mounte on the conveyer frame 46, and'whereby motion is communicated to the endless bucket. conveyer through the mediuni of the mechanism heretofore explained. During the operatlon of the belt conve 'er,

the buckets dig into the bank 73 as trey reach the lower extremity of the conveyer frame, whereby the buckets are filled and carried upwardly and discharged into the hopper 83. As this hopper is open at the bottom, the materialfalls directly to the centrally depressed belt conveyor Stand is carried rearwardly thereby and discharged ata lower or more elevated point as may be desired.

Attention is called to the'fact. that the brackets A are removably 'mounted upon the non-rotary platform and may be changed to any desired position thereon according to the direction it is desired to carry the material discharged upon the belt conveyor in any desired direction. It may be stated that the U-shaped member G which really forms the support for the forward extremity of the conveyor frame, may turn freely upon the vertical engine shaft 87 in a horizontal plane, thus allowing the lateraladjustability of the belt conveyer, which becomes practicable b reason of'the fact that the axis 9f.

the she t 87 coincides with the axis or center of. motion of the rotary platfornr', Hence the rotary platform may veyer, and at the same time-allow the discharge frem the bucket .conveyer to enter l e actuated with out-changing the position of the belt conthe hopper 83. 'It is also true that the lateral position of the belt conveyer may be changed without interfering in any way with the operative arrangement of the two eonveyers. The endless traveling belt conveyer, is supported intermediate the end drums by transversely disposed rollers S5 which engage the upper run of the conveyer.

The non-rotary platform 6 is provided on opposite sides of the parallel frame bars 8 with'roller devices 4 comprising brackets 3 and grooved rollers or trackwheels 2. These brackets are attached to the inner periphery of the eirculartrack 7 by means of ajack screw 11 journaled in each bracket 4 and threaded in a nut a attached to the track 7. The function of these laterally disposed track wheels, is to facilitate the proper su port of the non-rotary platform where the t iametel" of the said platform is considerable. In this event temporary tracks are located underneath these wheels, and the vertical position of the latter is regulated to harmonize with the varying conditions of the surface. A hand spike or other suitable tool (not shown) may be inserted in openings 4 formed in the collar of thescrew, for the purpose of turning the latter in either direction according as it is necessary to raise or lower the wheels in order to bring them into proper engagement with the temporary tracks 4'.

In order to properly strengthen the non-.

rotary platform, where the latter is of considerable size, transversely disposed beams or channel bars 4 (see Fig. 3) may be cmploycd. .lhese ehannel bars are located on opposite sides of a diameter passed through the center of the platform and the track wheel devices 4 occupy positions between these beams.

My improved machine is especially adapted for use in excavating earthen material of all kinds and loading the same upon wagons, carts or cars or removing it from a ditch and lacing it upon a bank either to the right or cft or straight back over the machine for a considerable distance sav from ten to fifty feet. it is also particu arly :ulvantagcous in forming railroad cuts and also in street grading. .lt may also be employed in vari one other relations of a like or similar charactor.

In, order to change the position of the brackets A upon the no. rotary platform, it is only necessary to remove the pin A which passes through registering openings formed in lugs A" and the member A which these lugs straddle. When this is doncthc brackets may be made to slide along the top of the non-rotary platform member A until the desired position is reached. lock the brackets in any desired additional apertures A are forme member A.

position, m the In order to v Having thus described my invention, what I claim is:

1. In a mechanism of the class described, the combination with a suitable support, of a conveyer whose frame is slidably mounted upon said support, a motor mounted on the conveyer frame, and a suitable connection between the motor and the conveyor, whereby the latter is adapted to automatically adjust itself vertically, substantially as described.

2. The combination with a relatively stationary frame, of an endless bucket conveyer, and a conveyer frame slidably mounted on the relatively stationary frame, an engine mounted on the conveyer frame, and a suitable operative connection between the engine and the endless bucket conveyer, substantially as described.

3. In a fluid operated shovel, the combination with a frame, of an endless bucketconveyer mounted thereon, an engine mounted on the conveyer frame, and a suitable operative connection between the endless conveyer and the said engine, substantially as described.

4. The combination with a relatively stationary frame, of a conveyor frame movably mounted thereon, an endless bucket conveyer mounted on the conveyer frame, an engine also mounted on the conveyer frame, and a suitable operative connection between the engine and the endless bucket conveyer,

substantially'as described.

5. The combination with a rotary platform, of a relatively stationary frame mounted thereon, a conveyer frame longitudmally movable on the relatively stationary frame, an endless bucket conveyer mount ed on the conveyer frame, an engine also mounted on the conveyer frame, and astutable operative connection between the engine and the endless bucket conveyer, substantially as described.

6. The combination with a fotary platform, of a relatively stationary frame mounted thereon and rigidly connected therewith, a conveyor frame longitudinally movable U)OI1 the relativcl stationar frame, a screw shaft jonrnaled on the rotary platform, a nut threaded to travel on said shaft, and a cable connection between the nut and conveyer frame whereby the longitudinal position. of the latter upon the stationary frame may be regulated and controlled. 7. he combination with a non-rotary platform, of an upper platform rotatably mounted thereon, an endless bucket conveyer mounted on the rotary platform, a portion of the rotary platform having the shape of a segment. of a circle, the periphery of t 6 said p ttfflllll having a grooved track, an operating cable engaging said track, the extremitios of the cablebeing adjustably connected with the platform for tension purerent plane fiom the platform and engaged by the said cable intermediate its extremities, a fluid-olperated engine mounted on the nonrotary p atform, and a suitable operative con nection between said engine and the wheel engaged by the cable whereby the saidwheel may be rotated in the one direction or the other according to the direction it is desired to turn the platform.

8. The combination with a non-rotary platform, of an upper platform rotatably mounted on the non-rotary platform, an endless bucket conveyer mounted on the rotary platform, the rotary platform being circular in shape, its periphery being provided with a grooved track, a cable engaging said track and fastened at its extremities to the rotary platform, an o crating wheel located out of the plane of t e rotary platform and having its axis parallel with the rotary platform, a fluid-operated engine mounted on the non-rotary platform, an operative connection between the saidengine and the said wheel, mechanism inter osed between the engine and the Wheel capa le of such adjustment that the wheel may be turned in the one direction or the other without reversing the engine, substantially as de-' scribed.

9. The combination with a non-rotary platform, and a track upon which said platform is mounted to travel, of a second platform rotatably mounted u onthe nonro tary platform, an endless b ucket conveyer mounted on the rotary platform, a cable engaging the periphery of the rotary platform and having its extremities secured to the latter, an operating wheel engaging said cable, a shaft upon which said wheel is mounted, an engine, an engine shaft, a countershaft, an operative connection be tween the engine shaft and countershaft to permit the rotation of the latter in reverse directions or allow it to remain stationary as may be desired, and a worm gear connection between the countershaft and the shaft upon which the cable operating wheel is mounted, substantially as described.

10. The combination with a non-rotary platform, a track upon which said platform is mounted to travel either forwardly or rearwardly, a second platform rotatably mounted upon the non-rotary platform, an endless bucket conveyer mounted on the rotary platform, an engine also mounted on the non-rotary platform, an operativeconnection between the engine and the rotary platform for imparting the rotary movement to the latter, and an operative connection between the same engine and the nonrotary platform, for imparting the forward and backward movement to the latter, substantially as described.

11. The combination with a platform, of an endless bucket conveyer, a conveyer frame upon which the latter is mounted, a-

second conveyer also mounted thereon, the two conveyers being in alinement with each other, means mounted on the platform for operating the second conveyer, and means mounted on the frame of the endless bucket conveyer for operating the latter, substantially as described.

12. The combination with a platform, of an endless bucket conveyer mounted thereon, a belt conveyer in alinement with the bucket conveyer, a support engaging the platform upon which one extremity of the frame of the belt conveyer is pivotally mounted, an upright support mounted on the platform and projecting above the belt conveyer intermediate its extremities, a winding shaft mounted on said su ort, and a. cable connection between said winding shaft and the free extremity ofthe belt conveyer whereby the elevation of the latter may be adjusted, substantially as described. 13. The combination with a non-rotary platform, a track upon which said platform is mounted to travel forwardly and rearwardly, a second platform rotatably mounted upon the non-rotary platform, an endless bucket conveyer mounted on the rotary platform, and a second conveyer arranged in .alinement with the endless bucket conveyer and arranged to receive the contents of the buckets as they move to the dumping position, substantially as described.

14. The combination with a track, of a non-rotary platform mounted to travel upon said track, a second platform rotatably mounted upon the non-rotary platform, an engine mounted on the non-rotary platform, a suitable connection between said engine and the last named platform, whereby the latter may be moved in either direction upon its track, a suitable operative connection between said engine and the rotary platform, whereby the latter may be rotated in'either direction, "an endless bucket conveyer mounted on the rotary platform,

and a second conveyer mounted on the non rotary platform and arranged to receive the discharge from the endless bucket conveyer, the second conveyer being mounted to permit lateral adjustment to change its line of direction substantially as described.

15. The combination of a non-rotary platform, a second platform rotatably mounted thereon, an endless bucket conveyer mounted on the rotary platform, and an endless belt conveyer mounted on the non-rotary plat-- form, the belt conveyer being arranged to re ceive the discharge from the bucket conveyer regardless of the relative position of the rotary platform, the belt 1 conveyer being mounted to ermit vertical adjustment to regulate its inc ation substantially as described.

eoaeae 16. The combination of a non-rotary platform, a track'upon which said platform 1s mounted, a second platform rotatably mounted upon the non-rotary platform, an

moving the latter u on its track in either direction, an endless ucket conveyor mounted on the rotary platform, a frame. upon which the .said'conveyer is mounted, an engine mounted on the said frame, an operative connection between the engine and the bucket conveyer, a belt conveyor mounted on the nonrotary platform and arranged to receive the discharge from the bucket conveyer regardless of the relative position of the rotary platform, and an operative connection between the belt conveyer and the engine carried b the non-rotary platform, substantially as c escribed.

17. The combination of a non-rotary platform, a second latform rotatably mounted thereon, an end ess bucket conveyer mounted on the rotary platform, and a second conveyer mounted on the non-rotary platform, the second conveyor being arranged to receive the discharge from the bucket conveyer, and mounted to ermit vertical ad justment to regulate its inclination and also to ermit lateral'adjustment, substantially as escribed. 18. The combination with a non-rotary platform, a belt conveyor pivotally mounted at oneextremity to ment to regulate its inclination and also to permit lateral adjustment, a second platorm rotatably mounted upon the non-rota platform, its axis of rotation coincidin wit the conveyor belts axis of latera movement, andan endless bucket conveyer mounted on the rotary platform and ar ranged to discharge upon the belt conveyor. 19. The combination with a non-rotary platform, a track upon which said platform 15 mounted to travel forwardly and rear- Wardly, the platform having centrally losated track Wheels, and laterally disposed vertically adjustable wheels, to )reserve the balance of the platform, an em less bucket conveyor mounted on the rotary platform, and a second-conveyer mounted on the nonrotary platform and cod erating. with the first named conveyor, su stantially as described.

ermit vertical adjust' In testimony whereof I afiix my signature 

